发明授权
- 专利标题: Draining device.
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申请号: US1899049155申请日: 1899-06-30
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公开(公告)号: US674192A公开(公告)日: 1901-05-14
- 发明人: BOLLING SAMUEL HARVEY
- 申请人: RICHARD A BOLLING , LUCY R BOLLING , BOLLING SAMUEL HARVEY
- 专利权人: Richard A Bolling,Lucy R Bolling,Samuel Harvey Bolling
- 当前专利权人: Richard A Bolling,Lucy R Bolling,Samuel Harvey Bolling
- 优先权: US1899049155 1899-06-30
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